-
Notifications
You must be signed in to change notification settings - Fork 1
/
dio_test.go
65 lines (55 loc) · 1018 Bytes
/
dio_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
package ioengine
import (
"fmt"
"os"
"testing"
)
var DIOID int
func NewDirectIO() (*DirectIO, error) {
opt := DefaultOptions
opt.IOEngine = DIO
DIOID++
name := fmt.Sprintf("/tmp/directio/%d", DIOID)
os.Remove(name)
return newDirectIO(name, opt)
}
func TestDirectIOWrite(t *testing.T) {
fd, err := NewDirectIO()
if err != nil {
t.Fatalf("Failed to new fileio: %v", err)
}
defer fd.Close()
b0, err := MemAlign(BlockSize)
if err != nil {
t.Fatal(err)
}
copy(b0, []byte("hello world"))
nw, err := fd.Write(b0)
if err != nil {
t.Fatal(err)
}
if nw != BlockSize {
t.Fatal("write: short write")
}
b1, err := MemAlign(BlockSize)
if err != nil {
t.Fatal(err)
}
copy(b1, []byte("direct IO"))
b := NewBuffers()
b.Write(b0).Write(b1)
nw, err = fd.WriteAtv(*b, 0)
if err != nil {
t.Fatal(err)
}
if nw != 2*BlockSize {
t.Fatal("buffers: short write")
}
nw, err = fd.Append(*b)
if err != nil {
t.Fatal(err)
}
if nw != 2*BlockSize {
t.Fatal("append: short write")
}
}